49851263616 has 256 divisors, whose sum is σ = 168935500800. Its totient is φ = 12646932480.

The previous prime is 49851263603. The next prime is 49851263629. The reversal of 49851263616 is 61636215894.

It is an interprime number because it is at equal distance from previous prime (49851263603) and next prime (49851263629).

It is a super-2 number, since 2×49851263616² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1251820 + ... + 1291028.

It is an arithmetic number, because the mean of its divisors is an integer number (659904300).

Almost surely, 2^49851263616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49851263616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84467750400).

49851263616 is an abundant number, since it is smaller than the sum of its proper divisors (119084237184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49851263616 is a wasteful number, since it uses less digits than its factorization.

49851263616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39287 (or 39275 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 51.

The spelling of 49851263616 in words is "forty-nine billion, eight hundred fifty-one million, two hundred sixty-three thousand, six hundred sixteen".